What ND filter for long daylight (noon) exposures?

05/24/2004 05:57:20 PM · #1

I've made some cool long exposure night shots, and I'd like to be able to make some long exposure (up to 30 seconds) daylight pics. Can anyone tell me how dark a filter I'd need to be able to shoot 100 ISO, f/16 or so and 30 seconds in bright noon light? I figure this will give me maximum utility b/c I can always bump the ISO or open the aperture if I want a shorter shutter time. I'd also appreciate any brand or other filter suggestions.

Thanks,
Ara

joshua

Canon EOS-500D Rebel T1i

Canon EF 50mm f/1.8 II

05/24/2004 05:58:34 PM · #2

you could do an infrared shot and then combine it with a color shot of the same scene. sorry don't know exactly which filter you would need

Canon EF 70-300mm f/4.5-5.6 DO IS USM

05/24/2004 06:01:13 PM · #3

Do IR filters work with the Canon DSLRs? I thought there was a permanent IR filter in front of the sensor.

cpanaioti

Canon EOS-40D

05/24/2004 06:02:02 PM · #4

The other day I tried to get something at 1/4 of a second at noon on an overcast day. I couldn't get past 1/30 of a second with an ND 3 and a polarizer.

For 30 seconds you'll probably need to stack a few filters, for example several ND 8s. As suggested, using an IR filter would also allow for a slow shutter speed. The filter in front of the sensor blocks most of the IR from getting through but some still does.

Message edited by author 2004-05-24 18:02:44.

faidoi

Pentax K10D

Pentax DA 18-55mm f/3.5-5.6 AF

05/24/2004 06:04:30 PM · #5

Isn't noon the worst time to take pictures outside? I think stacking or putting multiply filters is the only way to get a long exposure at noon.

Message edited by author 2004-05-24 18:05:17.

05/24/2004 06:41:31 PM · #6

Originally posted by faidoi:

Isn't noon the worst time to take pictures outside? I think stacking or putting multiply filters is the only way to get a long exposure at noon.

I'm just trying to cover my bases. I don't have any noon shots that I can think of. :^)